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arXiv:cond-mat/0107005 · Physical Review Letters

Quantum Phases of Vortices in Rotating Bose-Einstein Condensates

Nigel R. Cooper, Nicola K. Wilkin, J. M. F. Gunn

Published Aug 30, 2001• 454 citations
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Abstract

We investigate the ground states of weakly interacting bosons in a rotating trap as a function of the number of bosons, N, and the average number of vortices, N(V). We identify the filling fraction nu identical with N/N(V) as the parameter controlling the nature of these states. We present results indicating that, as a function of nu, there is a zero temperature phase transition between a triangular vortex lattice phase, and strongly correlated vortex liquid phases. The vortex liquid phases appear to be the Read-Rezayi parafermion states.

DOI
10.1103/physrevlett.87.120405

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